{"product_id":"industrial-21-a181md4","title":"Industrial 21-A181MD4 Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eIndustrial 21-A181MD4 Circuit Breaker is a rugged protection device designed to safeguard industrial electrical circuits from overloads and short circuits. Identified by Part Number 21-A181MD4, this breaker integrates seamlessly into standard industrial control panels and switchgear, delivering reliable isolation and rapid trip when protection is required.\u003c\/p\u003e \u003ch2\u003eKey Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eReliable protection\u003c\/strong\u003e—provides dependable overload and short-circuit interruption to shield wiring, motors, and sensitive equipment from damage.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIndustrial-grade durability\u003c\/strong\u003e—built to withstand the demanding environments of manufacturing floors, with robust construction that resists vibrations and temperature fluctuations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEasy reset and maintenance\u003c\/strong\u003e—clear, quick-reset operation after a trip helps keep production moving and reduces downtime.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExact part consistency\u003c\/strong\u003e—as the Part Number 21-A181MD4, it ensures consistent electrical characteristics across spares and replacements, reducing compatibility uncertainties.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompact and adaptable\u003c\/strong\u003e—designed to fit into crowded control panels without sacrificing accessibility for testing and servicing.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhere this model shines\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eProtecting motor feeders and heavy machinery on manufacturing lines and automated processes.\u003c\/li\u003e \u003cli\u003ePanel-board protection for conveyors, robotics stations, and other critical industrial loads.\u003c\/li\u003e \u003cli\u003ePower distribution feeders in facilities that require dependable trip performance and predictable behavior.\u003c\/li\u003e \u003cli\u003eStocking and maintenance planning for facilities already standardized on the 21-A181MD4 part family to simplify replacements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and Installation\u003c\/h3\u003e\n\u003cp\u003eBefore integrating, verify the electrical ratings and enclosure compatibility to ensure the 21-A181MD4 meets your system’s voltage and current requirements. Because this is the Part Number 21-A181MD4, you’ll maintain consistent characteristics with your existing panels and equipment, easing commissioning and future replacements. For installation, follow standard safety practices and ensure the breaker is properly seated in its panel or switchgear slot.\u003c\/p\u003e \u003ch3\u003eMaintenance and Longevity\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eSchedule periodic inspections of the trip mechanism and contact wear; replace if you notice sticking, chattering, or signs of overheating.\u003c\/li\u003e \u003cli\u003eKeep the surrounding area clean and dry to minimize nuisance trips caused by dust or humidity.\u003c\/li\u003e \u003cli\u003eMaintain a ready spare of the exact Part Number 21-A181MD4 to minimize downtime during component swaps.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoosing the Industrial 21-A181MD4 Circuit Breaker means fortifying uptime, protecting essential equipment, and preserving consistent electrical performance across your facility. It’s a purposeful, reliable component that aligns with your industrial power distribution needs.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Industrial","offers":[{"title":"Default Title","offer_id":46423720984738,"sku":"21-A181MD4","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/industrial-21-a181md4","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}